Book excerpt: This is novelist Philip Roth's account of his 86-year-old father's last year. Suffering from a brain tumour and fighting death, Herman is accompanied through each fearful stage of his final ordeal by his son, who, marvelling at his father's long, stubborn engagement with life, recounts a relationship full of love and dread. Conspicuous throughout the book are Herman's tough integrity and moments of humour, but it is also an intensely painful story, as Philip Roth has to decide whether or not to terminate his father's life.